{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "238125623",
    "entityType": "User",
    "nonce": "0x03f5b785c130729c5a8aa313797d387267ea4508dd5813a030b3f83691efc492",
    "signature": "0x8da3c4225d418264aad17a078da5af8ae84d5c1f6c133d97d28acc56a698ba530fc9f7dd5a34c309cc1333c2e1e52b85eb3671700be940cfab2337eaa75ac6391b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}